[all-commits] [llvm/llvm-project] 73ac3c: [SVE] Lower scalable vector ISD::FNEG operations.

[paulwalker-arm via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 73ac3c0ede4ca08b72618620f92f1efcb76f2c89
      https://github.com/llvm/llvm-project/commit/73ac3c0ede4ca08b72618620f92f1efcb76f2c89
  Author: Paul Walker <paul.walker at arm.com>
  Date:   2020-08-25 (Tue, 25 Aug 2020)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64ISelLowering.h
    M llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
    M llvm/lib/Target/AArch64/SVEInstrFormats.td
    M llvm/test/CodeGen/AArch64/sve-fp.ll

  Log Message:
  -----------
  [SVE] Lower scalable vector ISD::FNEG operations.

Also updates isConstOrConstSplatFP to allow the mul(A,-1) -> neg(A)
transformation when -1 is expressed as an ISD::SPLAT_VECTOR.

Differential Revision: https://reviews.llvm.org/D86415